COMMITMENTS AND CONTINGENCIES - Franchise and Management Agreements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Franchise agreements
Commitments and contingencies
Fees related to the agreement	$ 11.8	$ 11.7	$ 35.8	$ 36.2
Management Agreements
Commitments and contingencies
Fees related to the agreement	$ 3.7	$ 4.2	$ 13.3	$ 14.9
Management Agreements | Maximum
Commitments and contingencies
Term of contract			5 years